[3D Printing] Prusa Research Releases PrusaSlicer 2.9
Prusa has released an update to PrusaSlicer. Users can now distribute parts directly across up to nine print beds within the slicing software and utilize tools such as the Blur Skin Painter and Scarf Seam to improve print quality.

Multi-bed and batch export
You can now use up to 9 beds in one scene! This makes it easier to handle more complex projects than before.
Additionally, all beds share the same printing settings, so you'll often use this feature to organize multipart printing.
If items cannot be placed on one bed, the arrangement tool can now distribute them across multiple beds.
Finally, a separate button has been added this time, which allows you to arrange items only on the mobile bed.
Beds will also be added and removed automatically based on your interactions. Simply move an object to the space where another bed is located, and it will be generated.
The beds are always arranged in the same 3 x 3 grid for easy user tracking.
You can slice the bed individually or simultaneously. If you choose to slice the bed simultaneously , you can batch export the G code or add them all to the print queue via Prusa Connect.
The output screen even provides useful statistics on overall print time and consumable usage.
Automatically detect multiple beds in the old PrusaSlicer project
PrusaSlicer has had a minimal concept of virtual beds for many years, which is evident in its arrangement function.
When there are too many items to fit on a bed, PrusaSlicer will continuously add them, just like it would to the adjacent beds.
If you load such an item into PrusaSlicer 2.9.0, this situation will be detected, and the objects on these virtual "beds" will be moved so that they actually end up on the non-virtual beds in the grid.
scarf seams
PrusaSlicer has added a new seam option called "Scarf Seam".
Its main purpose is to hide visible seams on the smooth edges of an object, which is achieved by overlapping and pressing at the beginning and end of the peripheral ring.
The name of this feature comes from a similar technique in woodworking called a "scarf joint".
In the example above, the cylinder is printed with regular seams and scarf seams.
The first mark indicates the start of the scarf seam, the second the end, and the third the standard seam. The scarf seam significantly reduces the visibility of ordinary seams.
Printables is now a permanent option in the Prusaslicer top bar. All users can use this option even if they are not logged in.
Similar to the web version, you can browse 3D models in the Printables tab and seamlessly open them on the Plater tab using the Slice button with the Printables logo, or send G-code directly to your printer via Prusa Connect.
Apply blurry skin
The new Blur Skin Painting tool available in the left-hand toolbar allows you to easily add blurred skin to parts of an object without using modifiers.
It features several brush types and a smart fill tool similar to multi-material tools and supports painting tools.
This new tool complements the overall effect of blurred skin generation.
Previously, it divided an object into separate areas with their own perimeter.
The new implementation method, as you intuitively expect, only affects the periphery.
At the same time, the texture quality of blurred skin has also been improved.
Improvements to drawing tools and multi-material slicing
The Height Range tool has been added to Multi-Material Painting, allowing you to create perfect horizontal color stripes across the entire object.
The bucket tool has also been improved and now includes a fill angle setting, similar to the smart fill tool.
This works very well when used in conjunction with the height range tool, which you can use to mark borders for coloring.
The processing of painted models has been improved, and various types of workpieces have been repaired.
This means that slice models will now be better matched to how they are drawn.
Supports printing with different nozzle diameters
Experienced users and developers can now print on multi-head printers (such as the Original Prusa XL) using different nozzle diameters.
This workflow allows for the combination of nozzles of different diameters (e.g., smaller nozzles for fine areas and larger nozzles for rapid filling).
Please check the PrusaSlicer release page for more detailed information on the above features, as well as a complete list of all changes and bug fixes.
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